Mary is the manager of the Alpha company in the grocery industry. The major role of Alpha company is working as a grocery distributor though the company also produces some products. There are 4 products W, X, Y, and Z caused a lot of troubles for Mary in the past several years since the inventory and sales records were not available. From 2020 with the investment of IT and supply chain infrastructure, Mary can continuously monitor the sales and inventory information of these 4 products. It was the end of 2020. Mary had collected all 2020 weekly sales data and order history for these 4 products shown in the attached spreadsheet. This file also includes the historical order information for every weeks order in 2020. Mary wanted to use scientific ways to forecast demand and manage inventory for these 4 products. She decided to assign a project to Jason who has worked in the company for several years and just got his degree last year. Consider yourself as Jason to figure out what to do from this point forward.

Product W	Product X	Product Y	Product Z
$220	$50	$5	$3

a) Jason decided to use ABC rule to classify these 4 products. A category product(s) will have the target service level of 95%. B product(s) will have the target service level 90% and C products(s) will have the target service level 85%. After setting the appropriate service level, Jason will use the service level information to calculate the safety stock level for each product.a) How should Jason classify the ABC products? (10 points)

b) After classifying these 4 products, Jason wanted to use the ROP model forinventory/ordering management. He believed he would get an accurate demand forecasting for the first week of 2021. But based on the historical data. The attached spreadsheet document includes the order information for 2020. The company places the order of all products on each Wednesday. Jason found the lead time of orders has variations for all these 4 products. Which ROP model should Jason implement?

c) What are the reorder points for each of these 4 products for the first week of 2021?

Sales infromation of each product of 2020
Week 2020	Product W	Product X	Product Y	Product Z
1	34	54	253	203
2	34	51	253	203
3	35	55	250	208
4	34	55	250	201
5	36	54	248	202
6	39	57	258	210
7	36	56	248	202
8	40	56	251	205
9	41	53	249	207
10	44	56	249	205
11	43	57	242	207
12	46	55	243	206
13	48	62	247	202
14	48	53	240	206
15	47	56	242	207
16	51	51	248	207
17	48	64	241	205
18	49	57	246	207
19	52	62	242	206
20	51	55	238	207
21	50	58	246	208
22	57	67	239	205
23	54	69	241	207
24	56	58	240	214
25	57	68	239	206
26	59	64	232	214
27	60	65	240	208
28	63	65	237	209
29	62	63	237	210
30	61	64	234	207
31	59	66	234	212
32	67	62	232	205
33	58	71	231	208
34	66	66	228	211
35	60	72	232	213
36	69	68	230	213
37	71	71	231	207
38	65	64	229	210
39	71	69	231	208
40	68	71	228	207
41	75	67	227	213
42	71	73	226	214
43	78	68	227	208
44	77	75	217	209
45	81	75	227	211
46	79	75	224	212
47	77	72	225	214
48	75	71	224	211
49	79	77	224	213
50	85	77	225	218
51	84	79	224	212
52	78	74	217	215

*please read all question parts*